Question

Which statement best describes an important process carried

out by structure X?
1. Milk passes from the mother to the fetus.
2. Materials are exchanged between fetal and maternal blood.
3. Maternal blood is converted into fetal blood.
4. Oxygen diffuses from fetal blood to maternal blood.

Answer 1

2 materials are exchanged between fetal and maternla blood

Step-by-step explanation:

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